/**
  *
  * @param year 年份
  * @param time 时间
  * @param id  课程id
  * @param types 课程类型
  */
case class Course(year:String, time:String, id:String, types:String)

/**
  *
  * @param url 来源
  */
case class Url(year:String, time:String,url:String)
case class Ip(year:String, time:String,ip:String)

